回答編集履歴
4
initialを追加
answer
CHANGED
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@@ -51,15 +51,18 @@
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51
51
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```C#
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52
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class MainVM : ViewModel
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53
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{
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54
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-
public HogeVM TextBoxX { get; set; } = new HogeVM();
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54
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+
public HogeVM TextBoxX { get; set; } = new HogeVM(initial: 2);
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}
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class HogeVM : ViewModel
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{
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60
60
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61
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-
private double x
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61
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+
private double x ;
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62
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-
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62
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public HogeVM(double initial)
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63
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{
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64
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x = initial;
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65
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}
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66
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public string Text
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{
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65
68
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get
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3
例の追加
answer
CHANGED
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@@ -41,4 +41,69 @@
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41
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<TextBox Grid.Row="0" Grid.Column="1" Text="{Binding XTextBox.Text}" ...
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```
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43
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44
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-
とバインドしてはどうでしょうか。
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44
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+
とバインドしてはどうでしょうか。
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45
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+
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46
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+
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47
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---
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48
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+
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49
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+
こんな感じです。
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50
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+
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51
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+
```C#
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52
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+
class MainVM : ViewModel
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53
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+
{
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54
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public HogeVM TextBoxX { get; set; } = new HogeVM();
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55
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}
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56
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+
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57
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class HogeVM : ViewModel
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58
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{
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59
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+
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60
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+
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61
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private double x = 2;
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62
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+
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63
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public string Text
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64
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{
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65
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get
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66
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{
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67
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return this.x.ToString();
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68
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}
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69
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+
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70
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set
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71
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{
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72
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Console.WriteLine("set");
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73
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if (this.Text == value)
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74
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{
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75
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return;
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76
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}
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77
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+
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78
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+
double v;
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79
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+
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80
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try
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81
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{
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82
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v = double.Parse(value);
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83
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}
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84
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catch
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85
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{
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86
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this.RaisePropertyChanged(() => this.Text);
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87
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+
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88
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return;
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89
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}
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90
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+
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91
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+
this.x = v;
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92
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+
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93
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this.RaisePropertyChanged(() => this.Text);
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94
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}
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95
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}
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96
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}
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97
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```
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98
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+
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99
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```xml
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100
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+
<Window ...
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101
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>
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102
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<Window.DataContext>
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103
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<local:MainVM/>
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104
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</Window.DataContext>
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105
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<StackPanel>
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106
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<TextBox Text = "{Binding TextBoxX.Text}"/>
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107
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</StackPanel>
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108
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</Window>
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109
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```
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2
修正
answer
CHANGED
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@@ -1,10 +1,13 @@
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1
1
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```C#
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2
2
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public class HogeVM : ... //いい名前が思いつかなかった
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3
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+
// 何かしら継承する
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3
4
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{
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4
5
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/*
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5
6
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何かあるとは思うが省略
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6
7
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*/
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7
8
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private double x;
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9
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public HogeVM(double initial){/*省略*/}
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10
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+
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8
11
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public string Text
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9
12
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{
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10
13
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get
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@@ -28,8 +31,8 @@
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28
31
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29
32
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30
33
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```C#
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31
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-
public HogeVM XTextBox {get;} = new HogeVM(initial
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34
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+
public HogeVM XTextBox {get;} = new HogeVM(initial : 0);
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32
|
-
public HogeVM YTextBox {get;} = new HogeVM(initial
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35
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+
public HogeVM YTextBox {get;} = new HogeVM(initial : 0);
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33
36
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```
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34
37
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35
38
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のように元のVMにプロパティで持たせ、
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1
コメント受けて修正
answer
CHANGED
|
File without changes
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